*{
    margin: 0;
    padding: 0;
}
body{
    background-color: #f3f5f7;
    font-family: 'Microsoft Yahei';
}
/*第一部分 头部 */
header{
    width: 1366px;
    height: 50px;
    padding: 26px;
    text-align: center;
    margin:26px auto;
    overflow: hidden;
}
/* logo */ 
header .logo{
    float: left;
    /* height: 42px;
    line-height: 42px; */
}
/* 导航 */
 .navbar{
    float: left;
    height: 42px;
    line-height: 42px;
    margin-left: 50px;
}
ul{
    list-style: none;
}
header .navbar li{
    float: left;
}
a{
    text-decoration: none;
    color:#050505;
}
header .navbar li a{
    display: block;
    padding: 0 10px;
    height: 42px;
}
header .navbar li a:hover{
    border-bottom: 2px solid #00a4ff;
}
/* 个人中心 */
header .profile{
    float: right;
    height: 42px;
    line-height: 42px;
    margin: 0 15px 0 35px;
}
header .profile img{
    margin: 0 15px;
    vertical-align: middle; 
}
/* 搜索框 */
header .search{
    position: relative;
    width: 422px;
    height: 38px;
    float: right;
}
header .search input[type=text]{
    width: 410px;
    height: 38px;
    padding-left: 10px;
    border: 1px solid #00a4ff;
    outline: none;
}
header .search input[type=submit] {
    position: absolute;
    top: 0;
    right: 0;
    width: 50px;
    height: 40px;
    border-color: #00a4ff;
    background: #00a4ff url(../images/search.png) center center no-repeat;
}
/* 第二部分 广告宣传部分 */
.banner{
    width:1920px ;
    background-color: #1c036c;
    position: relative;
}
.container {
    width: 1200px;
    margin: 0 auto;
}
.banner .container{
    height: 420px;
    background: url(../images/banner.png) no-repeat center center;
}
/* 左导航 */
.banner .leftnav{
    float: left;
    width: 190px;
    height: 420px;
    background-color: rgba(0, 0, 0, 0.3);
}
.banner .leftnav li {
    height: 45px;
    line-height: 45px;
    padding: 0 20px;
}
.banner .leftnav li a {
    font-size: 14px;
    color: #fff;
}

.banner .leftnav li a:hover {
    color: #00a4ff;
}

.banner .leftnav a span {
    float: right;
}
/* 我的课程表 */
.banner .course {
    float: right;
    width: 230px;
    height: 330px;
    margin-top: 50px;
    background: #fff;
}

.banner .course h2 {
    height: 48px;
    background-color: #6bceea;
    text-align: center;
    line-height: 48px;
    font-size: 18px;
    color: #fff;
}

.banner .course .content {
    padding: 0 20px;
}

.banner .course .content li {
    padding: 17px 0;
    border-bottom: 1px solid #ccc;
}

.banner .course .content li:last-child {
    border-bottom: none;
}

.banner .course .content li:last-child h4,
.banner .course .content li:last-child p {
    color: #00a4ff;
}

.banner .course .content li h4 {
    font-size: 16px;
    color: #4e4e4e;
}

.banner .course .content li p {
    font-size: 14px;
    color: #a5a5a5;
}



.banner .course .content .more {
    display: block;
    margin-top: 5px;
    border: 1px solid #00a4ff;
    height: 38px;
    line-height: 38px;
    font-weight: bolder;
    text-align: center;
    color: #00a4ff;
}
/* 轮播圆点 */
.banner .circle{
    width: 180px;
    height: 22px;
    position:absolute;
    bottom: 10px;
    left: 50%;
    margin-left: -90px;
}
.banner .circle li{
    float: left;
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.4);
    margin: 6px 8px;
    border-radius: 50%;
}

.banner .circle .current {
    width: 19px;
    border-radius: 5px;
    background-color: #fff;
}
/* 精品推荐 */
.recommend{
    height: 60px;
    line-height: 60px;
    background-color: #fff;
    margin-top: 8px;
    display: block;
    box-shadow: 0 2px 2px 2px rgba(0, 0 ,0, 0.2);
}
.recommend a{
    padding: 0 30px;
    border-right: 1px solid #ccc;
}

.recommend a:hover {
    color: #00a4ff;
}
.recommend a:first-child {
    color: #00a4ff;
}
.recommend a:last-child {
    color: #00a4ff;
    border: 0;
    float: right;
    font-size: 14px;
}
/* 精品推荐课程 */
.recommend-couser {
    margin-top: 40px;
}
.recommend-hd {
    height: 40px;
}
.recommend-hd h4 {
    float: left;
    color: #494949;
}
.recommend-hd a {
    float: right;
    margin-top: 10px;
    margin-right: 30px;
    font-size: 14px;
    color: #a5a5a5;
}
.recommend-hd a:hover {
    color: #00a4ff;
}
.recommend-bd ul li {
    width: 228px;
    height: 270px;
    background-color: #fff;
    overflow: hidden;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.2);
    float: left;
    margin-right: 15px;
    margin-top: 15px;
}

.recommend-bd ul li:nth-child(5n) {
    margin-right: 0;
}

.recommend-bd li h5,
.recommend-bd li p {
    padding: 0 20px 0 24px;
    margin-top: 12px;
}

.recommend-bd li h5 {
    font-size: 14px;
    line-height: 22px;
    font-weight: normal;
}

.recommend-bd li p {
    font-size: 12px;
    color: #999;
}

.recommend-bd p span {
    color: #ff7c2d;
}
/* 外部内容 */
.outside{
    width: 183px;
    height: 425px;
    background: #FFFFFF;
    margin-left: 120px;
}
.outside ul {
    position:absolute;
    margin: 10px;
}
.outside ul li{
    padding-top: 15px;
}
/* <!-- 编程入门 --> */
.program{
    margin-top: 35px;

}
.program-hd h4{
    float: left;
    color: #494949;
    margin-right: 352px;
}

.program-hd a {
    float: right;
    margin-top: 10px;
    margin-right: 30px;
    font-size: 14px;
    color: #a5a5a5;
}

.program-hd a:hover {
    color: #00a4ff;
}
.program-hd ul {
    float: left;
}
.program-hd ul li {
    float: left;
    font-size: 16px;
    padding: 0 36px;
}
.program-hd ul li a {
    color: #a7a8a9;
}

.program-bd {
    margin-top: 15px;
}
.program-bd-l {
    width: 228px;
    height: 390px;
    float: left;
    margin-right: 15px;
    overflow: hidden;
}
.program-bd-r-bottom ul li {
    width: 228px;
    height: 270px;
    background-color: #fff;
    overflow: hidden;
    box-shadow: 0 4px 5px rgba(0, 0, 0, 0.2);
    float: left;
    margin-right: 15px;
    margin-top: 15px;
}
.program-bd-r-bottom ul li:nth-child(4n) {
    margin-right: 0;
}

.program-bd-r-bottom li h5,
.program-bd-r-bottom li p {
    padding: 0 20px 0 24px;
    margin-top: 12px;
}
.program-bd-r-bottom li h5 {
    font-size: 14px;
    line-height: 22px;
    font-weight: normal;
}

.program-bd-r-bottom li p {
    font-size: 12px;
    color: #999;
}
.program-bd-r-bottom p span {
    color: #ff7c2d;
}
/* 页面底部 */
.footer {
    height: 270px;
    background-color: #ffffff;
    margin-top: 324px;
}

.footer-in {
    padding-top: 30px;
}

.footer-l {
    float: left;
}

.footer-l p {
    font-size: 12px;
    line-height: 18px;
    color: #999;
    margin-top: 20px;
}

.footer-l a {
    display: block;
    width: 118px;
    height: 33px;
    border: 1px solid #00a4ff;
    text-align: center;
    font-size: 16px;
    line-height: 33px;
    margin-top: 15px;
}

.footer-r {
    float: right;
    color: #333;
}

.footer-r dl {
    float: left;
    width: 225px;
}

.footer-r dt {
    font-size: 16px;
    height: 30px;
}

.footer-r dd {
    font-size: 12px;
    height: 20px;
}

.footer-r dd a:hover {
    color: #00a4ff;
    text-decoration: underline;
    
}


